how to remove the last word in the string using JavaScript

Question

I would like to know how can I remove the last word in the string using JavaScript?

For example, the string is "I want to remove the last word."

After using removal, the string in the textbox will display "I want to remove the last"

I've seen how to remove the last character using the substring function, but because the last word can be different every time. Is there a way to count how many word is required to remove in JavaScript?

Thanks

Answer 1

var str = "I want to remove the last word.";
var lastIndex = str.lastIndexOf(" ");

str = str.substring(0, lastIndex);

Get last space and then get sub string.